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  1. 1

    Hymenoptera : symphyta. by Benson, Robert B.

    Published 1951
    Book
  2. 2

    The Hymenoptera, or Wasp-like Insects, of Connecticut / by Viereck, H. L. (Henry Lorenz), 1881-1931

    Published 1916
    Book
  3. 3
  4. 4

    The Australian species of Polynema Haliday, s.l., (Hymenoptera: Mymaridae) described by A.A. Girault / by New, T. R.

    Published 1976
    Book
  5. 5
  6. 6

    The cephid stem borers of California (Hymenoptera: Cephidae) / by Middlekauff, Woodrow W., 1913-2013

    Published 1969
    Book
  7. 7

    Some account of a new species of Eulophus geoffroy by Kirby, William, 1759-1850

    Published 1825
    Microfilm Book
  8. 8
  9. 9

    Spider wasps : Hymenoptera: Pompilidae / by Day, Michael Charles

    Published 1988
    Book
  10. 10

    Hymenoptera : superfamily Bethyloidea (excluding Chrysididae) / by Perkins, J. F.

    Published 1976
    Book
  11. 11

    The Australian social wasps (Hymenoptera: Vespidae) / by Richards, Owain Westmacott, 1901-1984

    Published 1978
    Book
  12. 12

    Hymenoptera; Proctotrupoidea. : Diapriidae subfamily Belytinae. by Nixon, G. E. J. (Gilbert Edward James)

    Published 1957
    Book
  13. 13

    On the form of the cells made by various wasps, and by the honey bee with an appendix on the origin of species / by Haughton, Samuel

    Published 1863
    Microfilm Book
  14. 14
  15. 15
  16. 16

    Descriptions of new genera and species of exotic Hymenoptera by Smith, Frederick, 1805-1879

    Published 1862
    Microfilm Book
  17. 17
  18. 18

    The natural history of Xylocopa teredo and Horia maculata by Guilding, Lansdown, 1797-1831

    Published 1825
    Microfilm Book
  19. 19

    On the Ocelli in the genus Anthophorabia by Newport, George, 1803-1854

    Published 1855
    Microfilm Book
  20. 20
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